#Introduction Chaffinches are very abundant in Britain, it’s pattern helps it to blend into the environment when it is feeding on the ground (Slater and Ince 1979). The wingspan of a chaffinch is 24.5-28.5cm and the mass is 18-29 grams (Marler 1956). Males (see figure 1) and females (see figure 2) have different appearances.

#(ref:chaffmale-fig) Male Chaffinch on a branch. By Photo © Andreas Trepte, CC BY-SA 2.5, https://commons.wikimedia.org/w/index.php?curid=3877642) #(ref:weddell-fig) Baby Weddell Seals are very cute. By Photo © Andreas, CC BY-SA 2.5, https://commons.wikimedia.org/w/index.php?curid=3877642

(ref:chaffmale-fig)

Figure 1: (ref:chaffmale-fig)

(ref:chafffemale-fig)

Figure 2: (ref:chafffemale-fig)

#Methods Some interesting techniques.

#Results

#Discussion

#Bibliography

## # A tibble: 2 x 2
##   sex        ss
##   <chr>   <dbl>
## 1 females  86.8
## 2 males    87.9

Marler, P. 1956. “Behaviour of the Chaffinch Fringilla Coelebs.” Behaviour. Supplement, no. 5: III–184.

Slater, P J B, and S A Ince. 1979. “Cultural Evolution in Chaffinch Song.” Behaviour 71 (1-2): 146–66.